@import url("https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,200..800;1,6..72,200..800&display=swap");

@font-face {
  font-family: "Iransans";
  src: url(../fonts/IranSans.woff) format("woff"), url(../fonts/IranSans.woff) format("woff2");
  font-weight: 400;
  font-style: normal;
}

:root {
  --header-height: 3.5rem;

  --primary-color: #0278b3;
  --secondary-color: #2c3030;
  --body-color: #f6f6f6;
  --white-color: #ffffff;

  --ff-Iransans: "Iransans", Tahoma, Helvetica, sans-serif;

  --fw-bold: 700;
  --fw-semi-bold: 600;
  --fw-medium: 500;
  --fw-regular: 400;

  --fs-xl: 2rem;
  --fs-lg: 1.25rem;
  --fs-md: 0.975rem;
  --fs-sm: 0.75rem;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 2.5rem;

  --zi-soft: 10;
  --zi-hard: 100;
}

@media screen and (min-width: 768px) {
  :root {
    --fs-xl: 2.5rem;
    --fs-lg: 1.75rem;
    --fs-md: 1rem;
    --fs-sm: 0.85rem;
  }
}

/* reset */

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--ff-Iransans);
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

button {
  font-family: inherit;
}

.my-3 {
    margin-block: 1.5rem;
}

/* header & nav */

.header {
  background-color: #242c30;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
}

.nav__top {
  display: none;
}

.logo,
.nav__logo {
  display: inline-block;
  width: 100%;
  max-width: 128px;
  padding-block: 1rem;
}

.logo {
    filter: drop-shadow(0 0 5px #f1f1f1);
}

.nav__logo {
  max-width: 64px;
}

.nav__main {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  height: 4.5rem;
}

.nav a {
  color: #fff;
  cursor: pointer;
}

.nav a:hover {
  color: #0278b3;
}

.nav__list {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 2.5rem;
}

.nav__group {
  position: relative;
}

.nav__group > a:hover {
  color: #0278b3;
}

.nav__subgroup {
  position: absolute;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  width: 550px;
  visibility: hidden;
  opacity: 0;
  right: 0;
  padding: 1.5rem;
  padding-top: 39px;
  background-color: #242c30;
  z-index: 100;
}

.nav__group:hover > .nav__subgroup {
  visibility: visible;
  opacity: 1;
}

.nav__subgroup a {
  width: 100%;
  display: grid;
  grid-template-columns: 50px 1fr;
  align-items: center;
  justify-content: center;
  max-width: 270px;
}

.nav__subgroup a span {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: hsla(217, 91%, 60%, 0.25);
}

.nav__subgroup a i {
  font-size: 1.5rem;
}

.nav__subgroup a h6 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.nav__subgroup a p {
  font-size: 0.75rem;
  color: #999;
}

.nav__toggle {
  display: none;
}

@media screen and (max-width: 768px) {
  .header {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .header .container {
    margin-inline: 0;
  }

  .nav__top {
    display: flex;
    padding-inline: 1rem;
    justify-content: space-between;
  }

  .nav__main {
    height: auto;
  }

  .nav {
    display: none;
    width: 100%;
  }

  .nav.active {
    display: grid;
  }

  .nav__list {
    padding-block: 1rem;
    align-items: flex-start;
    flex-direction: column;
    gap: 0.5rem;
  }

  .nav__home {
    width: 100%;
  }

  .nav__home a {
    display: block;
    width: 100%;
  }

  .nav__toggle {
    display: block;
    color: #ffffff;
    background-color: transparent;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
  }

  .nav__subgroup a {
    max-width: initial;
  }

  .logo {
    display: none;
  }

  .nav__group {
    width: 100%;
  }

  .nav__group > a {
    display: flex;
    width: 100%;
    justify-content: space-between;
    padding-block: 0.5rem;
  }

  .nav__subgroup {
    position: relative;
    visibility: visible;
    opacity: 1;
    display: none;
    width: 100%;
    grid-template-columns: 1fr;
    padding: 1rem 0;
    gap: 1rem 0;
  }

  .nav__group:hover > .nav__subgroup {
    display: grid;
  }

  .nav__subgroup a h6 {
    font-size: 0.75rem;
    margin-bottom: 0;
  }

  .nav__subgroup a p {
    display: none;
  }
}

/* tab */

.tab {
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.tab button {
  display: inline-flex;
  width: 128px;
  font-size: var(--fs-sm);
  padding: var(--space-1);
  border: 1px solid var(--text-color);
  cursor: pointer;
}

.tab button:hover,
.tab button.active {
  background-color: #333;
  color: var(--white-color);
}

.tab-content {
  display: none;
  padding: var(--space-2);
}

.tablinks i {
  margin-left: var(--space-1);
}

@media screen and (max-width: 512px) {
  .tab button {
    width: 100px;
    font-size: 0.65rem;
  }
}

/* alert */

.alert {
  width: 100%;
  padding: var(--space-1);
}

.alert--info {
  background-color: var(--primary-color);
  color: var(--white-color);
}

/* breadcrumb */
.breadcrumb {
  margin-bottom: var(--space-3);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.breadcrumb__item:not(:last-child)::after {
  content: ">";
  font-size: 0.75rem;
}

.breadcrumb__item:last-child {
  font-size: 0.75rem;
  padding-inline: var(--space-1);
  color: var(--text-color);
  margin-top: 0.2rem;
}

.breadcrumb__link {
  display: inline-block;
  font-size: 0.75rem;
  color: #777;
  padding-inline: var(--space-1);
}

/* utils */
.container {
  padding-inline: var(--space-2);
  margin-inline: auto;
}

@media screen and (min-width: 512px) {
  .container {
    width: 100%;
    max-width: 1250px;
    margin-inline: auto;
  }
}

/* showcase */
.showcase {
  position: relative;
  padding-block: 4rem;
  background-image: url(../imgs/resources/clean-room.jpeg);
  background-position: center;
  background-size: cover;
  background-attachment: fixed;
  height: 100vh;
}
.showcase::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.75);
}

.showcase__container {
  height: 100%;
}

.showcase__content {
  position: relative;
  z-index: 10;
  display: flex;
  width: 100%;
  height: 100%;
  flex-direction: column;
  justify-content: space-evenly;
}

.showcase__header {
  text-align: center;
}

.showcase__title {
  color: var(--primary-color);
  font-size: 4.5vmax;
}

.showcase__group {
  display: inline-block;
  background-color: var(--primary-color);
  color: transparent;
  font-size: 2vmax;
  padding: var(--space-2) var(--space-4);
  border-radius: 8px;
  color: #2c3030;
  margin-top: var(--space-3);
}

.showcase__data {
  margin-block: var(--space-5);
  color: var(--white-color);
}

.showcase__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  font-size: 2vmax;
  list-style-type: square;
  list-style-position: inside;
}

.showcase__item::marker {
  font-size: 1.5rem;
}

.showcase__description {
  font-size: 1.75vmax;
  margin-top: var(--space-4);
  text-align: center;
  color: #aaa;
}

@media screen and (max-width: 512px) {
  .showcase__list {
    list-style-type: none;
    gap: var(--space-4);
  }
}

/* solution */
.solution {
  padding-block: 4rem;
  background-color: var(--secondary-color);
  color: var(--white-color);
}

.solution__content {
  text-align: center;
}

.solution__header {
  font-size: 2vmax;
  padding-bottom: 4rem;
}

.solution__header span {
  color: var(--primary-color);
}

.solution__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: var(--space-4);
}

    .solution__list.solution__list--center {
        justify-content: center;
    }

.solution__item {
  width: 100%;
  max-width: 268px;
  border: 1px solid #0088cc50;
  transition: 0.4s;
}

.solution__item:hover,
.solution__item:hover .solution__icon,
.solution__item:hover .solution__description {
  color: var(--white-color);
}

.solution__item:hover {
  background-color: var(--primary-color);
}

.solution__link {
  display: inline-block;
  color: var(--white-color);
  padding: var(--space-4) var(--space-2);
}

.solution__icon {
  font-size: 4rem;
  color: var(--primary-color);
}

.solution__subtitle {
  font-size: 2rem;
  margin-top: var(--space-2);
}

.solution__description {
  color: #aaa;
  font-size: var(--fs-sm);
  margin-top: var(--space-2);
}

/* reason */
.reason {
  padding-block: 4rem;
}

.reason__header {
  text-align: center;
  padding-bottom: 4rem;
}

.reason__header h2 {
  font-size: 2vmax;
  margin-bottom: var(--space-3);
}

.reason__header p {
  color: #555;
}

.reason__header span {
  color: var(--primary-color);
}

.reason__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-5);
}

.reason__item {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-1);
  width: 100%;
  max-width: 256px;
  text-align: center;
}

.reason__icon {
  color: var(--primary-color);
  font-size: 3.5rem;
}

.reason__description {
  font-size: var(--fs-sm);
  color: #555;
}

@media screen and (max-width: 512px) {
  .reason__item {
    max-width: 168px;
  }
}

/* counter */
.counter {
  background-color: var(--primary-color);
  color: var(--white-color);
  padding: var(--space-3);
}

.counter__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  text-align: center;
}

.counter__item {
  padding: var(--space-4) var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.counter__count {
  font-size: var(--fs-lg);
}

.counter__count > .counter__number {
  font-size: 2.5rem;
}

@media screen and (max-width: 768px) {
  .counter__list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* group */
.group {
  padding-block: 4rem;
  background-color: var(--secondary-color);
}

.group__header {
  text-align: center;
  margin-bottom: var(--space-5);
}

.group__header h2 {
  color: var(--white-color);
  font-size: 2vmax;
}

.group__header span {
  color: var(--primary-color);
}

.group__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-5);
}

.group__item {
  text-align: center;
  padding: var(--space-2);
  font-size: var(--fs-md);
  transition: 0.4s;
}

.group__item:hover {
  transform: translateY(-5px);
  opacity: 0.75;
}

.group__link {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  color: var(--white-color);
}

.group__icon {
  font-size: 2.5rem;
}

.group__name {
  font-weight: var(--fw-regular);
  font-size: 1.1rem;
}

/* process */
.process {
  margin-block: 4rem;
}

.process__header {
  text-align: center;
}

.process__header h2 {
  font-size: 2vmax;
  margin-bottom: var(--space-3);
}

.process__header p {
  color: #555;
}

.process__data {
  margin-block: var(--space-5);
}

.process__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}

.process__item {
  position: relative;
  width: 230px;
  height: 300px;
  perspective: 1000px;
}

.process__inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  border-radius: 16px;
  transition: transform 0.6s;
  transform-style: preserve-3d;
  border: 1px solid var(--primary-color);
}

.process__item:hover .process__inner {
  transform: rotateY(180deg);
}

.process__face,
.process__back {
  position: absolute;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.process__item .process__face::before {
  content: "";
  position: absolute;
  top: -0.1rem;
  right: 1rem;
  width: 30px;
  height: 45px;
  border: 1px solid var(--primary-color);
  border-top: none;
  background-color: var(--white-color);
}

.process__item .process__face::after {
  position: absolute;
  top: 0.75rem;
  right: 1.75rem;
  color: var(--primary-color);
  font-weight: var(--fw-semi-bold);
}

.process__item:nth-child(1) .process__face::after {
  content: "1";
}

.process__item:nth-child(2) .process__face::after {
  content: "2";
}

.process__item:nth-child(3) .process__face::after {
  content: "3";
}

.process__item:nth-child(4) .process__face::after {
  content: "4";
}

.process__back {
  padding-inline: var(--space-2);
  transform: rotateY(180deg);
  background-color: var(--primary-color);
  color: var(--white-color);
}

.process__icon {
  font-size: 4rem;
  color: var(--primary-color);
  opacity: 0.5;
}

.process__back .process__icon {
  color: var(--white-color);
}

.process__title {
  margin-top: var(--space-3);
  color: var(--primary-color);
}

.process__back .process__title {
  color: var(--white-color);
}

.process__description {
  color: #555;
  font-size: var(--fs-sm);
  margin-top: var(--space-2);
}

.process__back .process__description {
  color: var(--white-color);
  opacity: 0.9;
}

/* support */

.support {
  margin-block: 4rem;
}

.support__header {
  text-align: center;
  margin-bottom: var(--space-4);
}

.support__header h2 {
  font-size: 2vmax;
}

.support__header p {
  margin-top: var(--space-2);
  color: #555;
}

.support__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}

.support__item {
  text-align: center;
  width: 100%;
  max-width: 268px;
  padding: var(--space-3);
}

.support__icon {
  color: var(--primary-color);
  font-size: 2.5rem;
  margin-bottom: var(--space-2);
}

.support__value {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: var(--space-2);
  gap: var(--space-1);
  direction: ltr;
}

.support__link {
  color: var(--text-color);
}

/* footer */

.footer {
    background-color: #333;
    color: #888;
}

.footer__content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3);
    padding-block: var(--space-5);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.footer__title {
    color: var(--white-color);
    margin-bottom: var(--space-2);
}

.footer__link {
    color: #888;
    font-size: var(--fs-sm);
    transition: 0.4s;
}

    .footer__link:hover {
        color: var(--white-color);
        text-decoration: underline;
    }

.footer__copyright {
    padding-block: var(--space-1);
    font-size: var(--fs-sm);
    color: #666;
    text-align: center;
}

.footer__description {
    display: flex;
    gap: var(--space-1);
    margin-block: var(--space-2);
}

@media screen and (min-width: 768px) {
    .footer__content {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-5);
        max-width: initial;
    }
}

/* category */

.category {
  margin-block: var(--space-5);
}

.category__content {
  padding-top: 2.5rem;
}

.category__title {
  color: var(--title-color);
  margin-bottom: var(--space-2);
  font-size: var(--fs-lg);
}

.category__description {
  color: #444;
  text-align: justify;
  line-height: 2;
  font-size: var(--fs-sm);
}

.category__info {
  margin-block: var(--space-5);
  text-align: center;
}

.category__info .solution__link {
  color: var(--title-color);
}

.category__info .solution__title {
  margin-top: var(--space-2);
}

.category__info .solution__description {
  color: #555;
}

/* subgroup */

.subgroup {
  position: relative;
  margin-block: 4rem;
  background-color: var(--secondary-color);
  padding-block: var(--space-5);
}

.subgroup::after {
  content: "زیر دسته بندی ها";
  position: absolute;
  top: var(--space-1);
  right: var(--space-2);
  font-size: 0.75rem;
  color: #aaa;
}

.subgroup__img {
  width: 100%;
}

.subgroup__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.subgroup__item {
  border: 1px solid var(--primary-color);
}

.subgroup__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  color: var(--white-color);
  padding: 3.5rem 3rem;
  transition: 0.4s;
}

.subgroup__link:hover {
  background-color: var(--primary-color);
  color: var(--white-color);
}

.subgroup__link:hover .subgroup__icon {
  color: var(--white-color);
}

.subgroup__icon {
  color: var(--primary-color);
  font-size: 3.5rem;
}

@media screen and (min-width: 768px) {
  .subgroup__list {
    grid-template-columns: repeat(5, 1fr);
  }

  .subgroup__link {
    font-size: var(--fs-md);
  }
}

/* product */
.product {
  margin-block: 4rem;
}

.product__content {
  padding-top: 2.5rem;
}

/* good */

.good {
  margin-block: 4rem;
}

.good__content {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: var(--space-5);
}

.good__figure {
  margin-bottom: var(--space-3);
  padding: var(--space-2);
}

.good__list--imgs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.good__thumbnail {
  cursor: pointer;
}

.good__thumbnail.active {
  padding: 0.25rem;
  opacity: 0.75;
  border: 1px solid #333;
}

.good__header {
  margin-bottom: var(--space-2);
}

.good__title {
  font-size: 2rem;
}

.good__description {
  color: #555;
}

.good__category {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  font-size: var(--fs-sm);
  background-color: var(--primary-color);
  color: var(--white-color);
  padding: var(--space-1) var(--space-2);
  margin-block: var(--space-1) var(--space-3);
  border-radius: var(--space-1);
}

.good__available {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  background-color: green;
  color: var(--white-color);
  padding: var(--space-1) var(--space-2);
  margin-block: var(--space-1) var(--space-3);
  border-radius: var(--space-1);
}

.good__list--specs {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.good__list--specs .good__item {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.good__icon {
  color: var(--primary-color);
  font-size: var(--fs-lg);
}

.good__value {
  color: #555;
}

.product__interaction {
  padding: var(--space-3);
  background-color: var(--white-color);
  color: var(--text-color);
}

@media screen and (min-width: 768px) {
  .good__content {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
  }
}

/* 2k */
@media screen and (min-width: 2048px) {
  body {
    zoom: 1.5;
  }

  .container {
    padding-inline: var(--space-5);
    max-width: initial;
  }
}

/* 4k */
@media screen and (min-width: 2048px) {
  body {
    zoom: 2;
  }
}